Home / 65,821,302.78-90,803,250.15-42,623,903.82

Finding the Fourth Proportional to 65,821,302.78, 90,803,250.15 and 42,623,903.82

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Solution

The fourth proportional to 65,821,302.78, 90,803,250.15 and 42,623,903.82 is: 58,801,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,821,302.78 : 90,803,250.15 = 42,623,903.82 : x
  2. Step 2: Convert to fraction form
    65,821,302.78/90,803,250.15 = 42,623,903.82/x
  3. Step 3: Cross multiply
    65,821,302.78x = 90,803,250.15 × 42,623,903.82
  4. Step 4: Simplify right side
    65,821,302.78x = 3,870,389,000,937,001
  5. Step 5: Solve for x
    x = 3,870,389,000,937,001/65,821,302.78
  6. Step 6: Final answer
    x = 58,801,464.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.